ESomepeoplehaveiteasy.Whentheirkidsaskthemwhattheydoatwork,theycangiveasimple,directanswer:“Iputoutfires”or“Iteachprimaryschool”.Asatheoreticalphysicist,Ineverhadthisluck.Societyhascometoexpe

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　　Somepeoplehaveiteasy.Whentheirkidsaskthemwhattheydoatwork,theycangiveasimple,directanswer:“Iputoutfires”or“Iteachprimaryschool”.Asatheoreticalphysicist,Ineverhadthisluck.Societyhascometoexpectmanythingsfromthephysicists.ItusedtobethatweonlyhadtodiscoverthebasiclawsoftheworldandsupplythetechniquesthatwouldpowerthenextSiliconValley.Withtheseexpectationswewerefairlycomfortable:theyarethesortsofthingswethinkweknowhowtodo.Whatmakesusuncomfortableandwhatmakesithardforustotellourkidswhatwe’reuptoisthatinthiscenturywehavebecome,thoughunwillingly,gurusonquestionssuchas“WhatisthenatureofReality?”

　　Wenowdealwithawholenewclassofproblems.Weaskhowtheworldbeganandwhatthenatureofmatteris.Theanswerswearecomingupwitharejustnoteasytocomprehendfortheaverageperson.

　　So,whenphysicistsgetoutoftheircarsinthemorning,haveacupofcoffeeandsitdowninfrontoftheircomputers,theyleaveafamiliarworldandenteraplacewherethingsactinstrangewaysthatareimpossibleforordinarypeopletounderstand.

　　72.Accordingtothepassage,inawayphysicistsare .

　　A.honest B.comfortable C.strange D.unlucky

　　73.Bywhatthewritersaysaboutphysicists,weknowthatphysicists .

　　A.don’tliketheircareers

　　B.liveintwodifferentworlds

　　C.arecomingupwithnewanswerstooldquestions

　　D.don’thavetotellpeoplewhattheyaredoing

　　74.Fromthepassagewecanconcludethattheoreticalphysicists .

　　A.contributedtothenewindustryinSiliconValley

　　B.onlyhavetoanswerthebasicquestionsabouttheworld

　　C.havedisappointedtheexpectationsofmanypeople

　　D.havefoundithardtomakethemselvespopular

　　75.What’sthemainideaofthepassage?

　　A.Societyseemstoknowabitaboutphysicists’work.

　　B.Mostpeopleareexpectingtoknowwhatphysicistsaredoing.

　　C.Physicistsaredoingmoreandmoredifficultjobs.

　　D.It’simpo